HARTLAND TWP, Mich (WLMI)  A Livingston County crossing guard is improving after being hit by a car in a school parking lot.  52-year old Sue Hazzard has been upgraded to serious condition at an Ann Arbor hospital.  She had been in critical condition since being hit by a 16-year old student Tuesday in the Hartland High School parking lot.  Police say the car was going about 45 miles per hour—no word on whether charges will be filed.